Pump



Aug. 30, 1932.

W. F. GODFREY PUMP 2 Sheets-Sheet Filed lay l, 1930 Aug. 30, 1932.

w. F. GODFREY( PUMP Filed May 1,`193o 2 Sheets-Sheet 2 Patented Au'g.30, 1932 U m-1 -sT -AT -S PATENT OFFICE" p FJGODFBEY, orxmmx, NEBBASKAPUMP' i Appl ieation m ed xafy1930. Seria1 No. 448336,

in described being simpler in Construction than the previous type andbeing provided with a packingmeans to the liquid being pumped.

ing its intake and outlet of greater' effective size relative to thesize of the? pump as a,

whole, therebyncreasing the efiiciency and pumping capacity of thepuInp. u

The foregoing and other objects together with means whereby the same.may be car-1 ried into effect'will best be understood from the followingdescription of a preferred em bodiment of the invention taken inconnec:`

tion with the accompanying drawings where- 1n:' 4 Figure 1 is a sideView of the improved pump, the same being partially broken away` andshown in section.

Figure 2 is an enlarged horizontal section In carrying out the 'presentinvention I provide an outer tubular or liollow casing 1 which isgenerally heart or heart cam shaped in plan and to the ends of which arefixed the upper andlower caps 2 and 3`by 'means of the bolts 4; Anintake slot is provided through the wall of thecasing land an ex-4 haustslot 6 is also provided tnrough the wall of the casing, the said slotsbeing spaced apart and vertically 'elongated'as shown. Ahousing 7 isprovided around the exhaust slot 6, the same being closed at itsl'ower'end and extendsabovethe 'top of the casing at its upper end. Acylindricalinner rotating casing or cylinder 8 is provided, the samebeing smaller in diameter than the casing 1 but of somewhat greaterlength than the same. Circular recesses 9 are provided in the innerforces of the upper and lower caps 2 and 3 and conventional rollerbearings 10 are mounted in these recesses 9. The ends of the preventleakage of i p i i 1, this .point being designated at 11 in FigureAnother ob 'ectjis to provide a pump' hav inner casing 8 are fixed inthe inner raees of the bearings 10 and this casing is thus journaledwithin the casing 1. It will be noted that this inner casing 8 is journaled conceni trically with relation to the center of radii of theheart shaped outer casing 1 and is of such diameter that it Contacts theinner face of said outer casing for a short distance at the point ofshortest radius of this casing 2. The. intake and `exhaustslots 5 and 6are disposed on each side of the point at which the innerand outercasings contact and this construction acts as an automatic check valveor block between the intake and exhaust as will be understoo d. By thismeans liquid entering the intake 5 must pass around the casing 8 beforeemerging from the exhaust 6.` To furtherblock the intake from theexhaust a vertically extended brush slot 12 is provided intheoutercasing l between the slots 5 and 6 and an elongatedbrush 13 hasits bristles 14 eXtended through this slot into engagement 'with theinner easing 8, the said brush being pressed in place by springs 15braced between the said brush and a lip 16 eXtendedfrom the side of thehousing 7. This brush 13 may have its bristles 14 formed of any desiredor suitable 'material such aswood fibres.` i i The inner casing 8 isprovided withfa cen-- trally disposed depended stub shaft 17 whichextends downwardly into` a bearing housing 18 and rests upon a ballhearing 19; which bearing is adjustable in a vertical direction by meansof threaded stud 20. A drive shaft 21 is Secured to the upper end of'the casing 8 and extends upwardly through the upper cap 2. This shaft 21is then provided with a pulley 22 by means of which the casing 8 may berotated by a suitable motor or engine `(not shown). p

Diametrically opposed and vertically eX- tended slots 23 are providedin'the inner casing 8 and a flat rectangular propeller or pumping blade24 is slidably mounted through these slots' as-shown; This blade 24iszof'justsuicient width to nicely fitwithin the outer' casing 1 andsince it is slidable in the inner casng 8 it may reciprocate therein tofollow the contour of the casing 1 as it rotates with the casing 8 aswill be understood. The margns of the blade 24 are provided with woodenstrips 25 to prevent wear or other water supply and the inner casing 8is rotated in the direction indicated by the arrow in F igure 2 by asuitable engineor motor (not shown) belted to the pulley 22. The waterwill of courseenter the casing 1 through the intake 5 and will then beforced out of the exhaust 6 by the revolving blade 24:, the entrance ofthe water into the casing being furthered by the suction set up as theblade 24 rotates. A 'plurality of angularly set and cupped waterdefiectors or guide vanes 28 are secured at intervals over the exhaustslot 6 and act to deflect the water ejected from that slot 6 upwardly inthe housing' 7 from which it may be piped or otherwise drawn ofi' foruse; For this reason the vanes 28 incline upwardly in the direction of,rotation of the casing 8 as shown. It will be apparent that the pumpmay be used for pumping other liquids such as oil or'for pumping gasesand the like. It will be noted that a larger space is left for theintake and outlet of the water by the use of the heart shaped outercasing than is the case where the circular outer' casing is used thusincreasing the eflic'iency of the pump.

While I have herein set fo rth a certain preferred embodinent of myinvention it is understood that I may vary fromthe same in minorstructural details so as best to construct a, practical device for thepurposes in tended, not departingfrom the spirit of the.

invention and within the scope of the appended claims.

'I claim:

1. In a device of the kind described. an outer elongated, verticallyarranged hollow casing, heart shaped in plan, there beingcorrespondingly elongated intake and exhaust slots formed longitudinallythrough the wall of the ca sing at either side of the longitudinalsection thereof defining the inturned or obtuse portion thereof andthere being a correspondingly elongated brush slot formed longitudinallythrough the wall of the casing immediately at the said inturned portionthereof, end caps for' the said outer casing, a correspondinglyelongated, cylindrical inner casing of substantially less diameter thanthe outer casing, the same being rotatably mounted within the outercasing equally between the intake and exhaust slots thereof :with thesaid inner casing, and a flat, rectangular pumping blade slidablymo-unted through the said blade slots of the inner casing, the outeredges of the blade having a slidable contact with the inner surface ofthe outer casing. p p

i 2. In a device of the kind described, an outer elongated, verticallyarranged hollow casing, heart shaped in plan, there beingcorrespondingly elongated intake and eXhaust slots formed longitudinallythrough the wall of the casing at either side of the longitudinalsection thereof defining the inturned or obtuse portion thereof andthere being a correspondingly elongated brush slot forinedlongitudinally through the wall of the casing immediately at the saidinturned portion thereof, end Caps for the said outer casing, acorrespondingly elongated, cylindrical inner casing of substantiallyless diameter than the outer casing, the same being rotatably mountedwithin the outer casing equally between the intake and exhaust slotsthereof and substantially in contact with the inner side of the saidinturned portion thereof, the said inner casing being provided withdiametrically opposed longitudinally eXtended blade slots. formedthrough its walls, an elongated brush adjustably mounted through thesaid brush slot of the outer casing and adapted to bear upon the outercylindrical surface of the inner casing, resilient means for maintainingthe said brush in contact with the said inner casing, a flat rectangularpumping blade slidably mounted through the said blade slots of the innercasing, the outer edges of the blade having a slidable contact with theinner surface of the outer casing, an elongated housing around the saideXhaust slot of the outer casing, the same being closed at its lowerend, and a plurality of water defiectors angularly mounted within thesaid pumping housing over the said eXhaust slot, thesame being adaptedto throw the water towards the upper end of the housing.

In testimony whereof I affiX my signature.

WILLIAM F. GODFREY.

